(13') of concrete, and a layer of sand for protection against enemy air raids. The bunker has a power station and a stand-alone system of air regeneration. There are workrooms on the 4th, 5th, 6th and 7th floors. After descending the stairs into the lower section and passing through the steel door, there is a long corridor. On the right side is Stalin's accommodation. On the left side is a convention hall. Several floors up, there's a series of rooms which include a generator, ventilation equipment, accumulators, an elevator motor, pump rooms and the telephone switchboard. See also Führerbunker Matsushiro Underground Imperial Headquarters Presidential Emergency Operations Center References Places associated with Joseph Stalin Continuity of government Bunkers in Europe Air raid shelters Buildings and structures in Samara, Russia Cultural heritage monuments of regional significance in Samara Oblast